At 16:45 +0300 on 29 May (1432917959), Razvan Cojocaru wrote:
> As suggested by Andrew Cooper, this patch attempts to remove
> some redundancy and allow for an easier time when adding vm_events
> for new control registers in the future, by having a single
> VM_EVENT_REASON_WRITE_CTRLREG vm_event type, meant to serve CR0,
> CR3, CR4 and (newly introduced) XCR0. The actual control register
> will be deduced by the new .index field in vm_event_write_ctrlreg
> (renamed from vm_event_mov_to_cr). The patch has also modified
> the xen-access.c test - it is now able to log CR3 events.
> 
> Signed-off-by: Razvan Cojocaru <rcojoc...@bitdefender.com>
> Acked-by: Jan Beulich <jbeul...@suse.com>

Acked-by: Tim Deegan <t...@xen.org>

FWIW, I think this: 

> +void hvm_event_cr(unsigned int index, unsigned long value, unsigned long 
> old);
> +#define hvm_event_cr(what, new, old) hvm_event_cr(VM_EVENT_X86_##what, new, 
> old)

is pretty nasty, and would prefer the function to have a different
name from the macro, but I'm not going to push a v8 series out to v9
over it.

Tim.

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